September 18, 2025Atmospheric chemistry and physicsOpen Access

Relation between total vertical column density and near-surface NO₂ based on in situ and Pandora ground-based remote sensing observations

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The relationship between total vertical column density and near-surface nitrogen dioxide concentrations changes throughout the day.
During morning hours, vertical stratification limits mixing of atmospheric gases, affecting NO2 measurements.
In the afternoon, improved vertical transport leads to a different relationship between total vertical column density and near-surface concentrations.
These findings impact the efficacy of using satellite remote sensing for estimating near-surface nitrogen dioxide levels.

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Implication

Observational analysis reveals varying relations between total vertical column density and near-surface nitrogen dioxide concentrations, suggesting complex atmospheric dynamics.

Cite This Study

Zhang et al. (2025) studied this question.

synapsesocial.com/papers/68d434d6713b0b5dfea73e30 https://doi.org/10.5194/acp-25-10643-2025

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Implication

Observational analysis reveals varying relations between total vertical column density and near-surface nitrogen dioxide concentrations, suggesting complex atmospheric dynamics.

Relation between total vertical column density and near-surface NO₂ based on in situ and Pandora ground-based remote sensing observations

Key Points

Discussion

Implication

Cite This Study

Relation between total vertical column density and near-surface NO₂ based on in situ and Pandora ground-based remote sensing observations

Key Points

Discussion

Implication

Cite This Study

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